Composite sodium supplement additive and application thereof in sodium ion battery
A technology for compound sodium supplementation and additives, applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve the problems of low energy density and poor cycle stability of batteries, and achieve improved industrialization process, low cost, and improved The effect of catalytic effect
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[0060] Preparation case Synthesis of manganese oxide / carbon catalyst
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[0061] Preparation 1α-MnO 2 Catalyst synthesis
[0062] Take 3 mmol of a hydrothermium manganese sulfate in 15 ml of deionized water, which is a liquid, and then dissolve 6 mmol of potassium permanganate is dissolved in 15 ml of deionized water, which is a B liquid, and the A liquid and B are constantly dissolved in a 90 ° C water bath. When the A liquid was poured into the B liquid, the mixture was 0.5 hours, then the mixed liquid was transferred into a 100 mL hydrothermal reaction kettle, 150 ° C heat-insulation 8h and then naturally fell to room temperature, filtration, washing, dried, to obtain α-MnO 2 Among them, the Bet specific surface area test, α-mno 2 54m specific surface area 2 / g.
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[0063] Preparation 2α-MnO 2 / CNTS-OH catalyst synthesis
[0064] Take 0.2 g of hydroxylated multi-walled carbon nanotubes (length, specific surface area 174m 2 g) and 2G kmno 4 Preventing the mortar, it was worn well, and then 60 ml of deionized water is less than 0.5 hours, and 1 ml of concentrated sulfuric acid is added dropwise, and the mixture is stirred at 80 ° C oil bath and then naturally cold to room temperature, and filter the filter. , Washing, dry, to obtain α-MnO 2 / CNTS-OH complex. Among them, the load amount of the active component (with metal manganese meter) is 48% by weight of the catalyst according to the thermal weight results.
[0065] Bet specific surface area test, α-mno 2 / CNTS-OH specific surface area of 198m 2 / g.
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